CN102207032B

CN102207032B - Fluid cooled reformer and the method for cooled reformer

Info

Publication number: CN102207032B
Application number: CN201110089978.6A
Authority: CN
Inventors: J·D·贝里; H·凯林; A·R·罕
Original assignee: General Electric Co
Current assignee: General Electric Co
Priority date: 2010-03-30
Filing date: 2011-03-30
Publication date: 2016-01-13
Anticipated expiration: 2031-03-30
Also published as: CN102207032A; EP2371762A3; US20120291352A1; JP5282114B2; US8252251B2; EP2371762A2; JP2011207755A; US8377156B2; US20110243805A1

Abstract

The open fluid cooled reformer of this theme and the method for cooled reformer are especially the fluid cooled reformer (22) for combustion gas turbine systems and the method for the thermal reforming product stream that cools fuel reformer (22) and produced by this fuel reformer (22).Fluid cooled reformer (22) can comprise pressurized container (24) and be arranged on the reactor assemblies (26) in pressurized container (24).Reactor assemblies (26) can comprise reactor (46), and can be configured to receive and oxygen/fuel mixture of reforming to produce thermal reforming product stream.In addition, fluid cooled reformer (22) can comprise the entrance (30) being configured to be directed to by fluid stream in pressurized container (24).Fluid stream can be used for cooling reactor assembly (26) at least partially.Reformate cooling segmentation (32) can be arranged on the downstream of the reactor (46) of reactor assemblies (26) and can be configured to heat of cooling reformate stream.

Description

Fluid cooled reformer and the method for cooled reformer

Technical field

This theme relates generally to combustion gas turbine systems, relates to the method flowed for the fluid cooled reformer of combustion gas turbine systems and the thermal reforming product (reformate) for cooling fuel reformer and produced by this fuel reformer in particular.

Background technique

Gas turbine is widely used for the commercial operation generated electricity.Usually, the gas turbine axis that can comprise around motor circularizes multiple burners of arranged in arrays.Pressurized air is supplied to each burner by compressor, in the burner pressurized air and fuel mix burn.The combustion gas of heat flow to the turbine section of motor from each burner, in turbine section, extract energy with work done from combustion gas.

Concerning to obtain and it is desirable that control combustion device performance the emission level maintaining the operation of gratifying overall gas turbine and obtain acceptable such as NOx level.It is generally known that improve the operation that the amount being present in the hydrogen be supplied in the air/fuel mixture of burner significantly can affect gas turbine.Such as, the existence of the hydrogen of certain tittle can improve combustion stability and regulating ratio (turndown) in air/fuel mixture, thus the operation making lower discharge and meet emission standard when lower load becomes possibility.

Known to the reformation of conventional carbon hydrogen fuel source or the fuel reforming system being transformed into hydrogen rich stream.Such as, the reformer of the known utilization such as partial oxidation reactor of catalyzing part oxidation (CPOX) reactor, its partial oxidation oxygen/fuel mixture is mainly to form hydrogen and carbon monoxide.This reforming system concentrates on produce high-quality hydrogen for fuel cell market, in particular traditionally.The reacting quintessence occurred during fuel reforming process is heat release, and therefore produces high-temperature product.Such as, the temperature leaving the hydrogen-rich reformate stream of reactor can more than 1700 Fahrenheits.

Due to the high temperature related in reforming process, so limit the use of fuel reforming system in gas turbine.Such as, the temperature of the thermal reforming product stream produced by reformer can exceed the permissible temperature of the material for the formation of the pipe in the pipe-line system of gas turbine usually.Therefore, in order to allow that thermal reforming product stream is directly sent into pipe-line system, all downstream line all need high temperature material.But this pipeline significantly improves the cost of material of gas turbine.In addition, reformer itself needs cooling to prevent overheated and to reformer component damage usually.But the additional cooling system of such as heat exchanger increases unnecessary complexity and expense.

Therefore, welcome a kind of fuel reformer technically, its for the cost efficient of thermal reforming product stream of discharging from reformer and relatively simply cool, and for the cooling of reformer itself.

Summary of the invention

Aspects and advantages of the present invention will partly propose in the following description, or can be apparent from explanation, or are learnt by practice of the present invention.

In an aspect, this theme provides a kind of fluid cooled reformer for combustion gas turbine systems.Fluid cooled reformer comprises pressurized container and is arranged on the reactor assemblies in pressurized container.Reactor assemblies can comprise reactor and can be configured to receive and oxygen/fuel mixture of reforming to produce thermal reforming product stream.In addition, fluid cooled reformer can comprise the entrance being configured to be directed to by fluid stream in pressurized container.Cooling reactor assembly can be used for a part for major general's fluid stream.Reformate cooling segmentation can be arranged on the downstream of the reactor of reactor assemblies, and can be configured to heat of cooling reformate stream.

In another aspect, this theme provides a kind of method of the thermal reforming product stream for cooling fuel reformer and produced by this fuel reformer.The method comprises: the reactor assemblies around fuel reformer guides fluid stream with cooling reactor assembly, and wherein reactor assemblies is configured to produce thermal reforming product stream; And thermal reforming product stream is mixed with fluid stream to cool this thermal reforming product stream.

These and other feature, aspect and advantage of the present invention becomes with reference to the following description and appended claim to be understood better.In conjunction with and the accompanying drawing forming a part for this specification illustrates embodiments of the invention, and be used from explanation one and explain principle of the present invention.

Accompanying drawing explanation

With reference to propose in the description of the drawings book of the present invention comprise optimal mode of the present invention for those skilled in the art complete and enforceable open, in accompanying drawing:

Fig. 1 illustrates the schematic diagram of gas turbine;

Fig. 2 diagram is according to the sectional side view of the embodiment of the fluid cooled reformer of the aspect of this theme;

The sectional side view of the embodiment of the fluid cooled reformer that Fig. 3 diagram is illustrated in fig. 2, the zoomed-in view of the pressurized container of diagram fluid cooled reformer in particular;

Fig. 4 diagram is according to the sectional side view of another embodiment of the fluid cooled reformer of the aspect of this theme; And

Fig. 5 diagram is according to the sectional side view of the another embodiment of the fluid cooled reformer of the aspect of this theme.

List of parts:

10 combustion gas turbine systems

12 compressor segmentations

14 combustor section

16 turbine section

18 axles

20 main fuel sources

22 fuel cooled reformers

24 pressurized containers

26 reactor assemblies

28 mixing segmentations

30 (bulk) in bulk fuel inlet

32 reformate cooling segmentations

34 front ends

36 rear ends

38 peripheral surface

The outer surface of 40 front ends

42 oxygen/fuel passage

44 outlets

46 reactors

48 reactor linings

The downstream of 49 linings

50 assemble segmentation

52 oxygen sources

54 fuel source

56 premix organ pipes

58 impingement sleeves

60 impact openings

The downstream of 62 sleeves

64 guide of flow walls

66 cavitys

68 cooling tubes

70 cooling covers

71 Cooling Holes

72 notch end

74 oxygen paths

76 projections

78 outer surfaces

80 fuel inlet

82 elongated outlets

84 fuel passage

86 mixing chambers

The internal surface of 88 front ends

90 mixing pans

92 mix aperture

94 valvular structures

Embodiment

Now with detailed reference to embodiments of the invention, one or more example is shown in the drawings.As explanation of the present invention but not restriction of the present invention provides each example.In fact, it will be apparent for a person skilled in the art that when not departing from scope of the present invention or spirit, various modification and change can be made in the present invention.Such as, to illustrate or the feature of the part that is described as an embodiment can use to produce further embodiment together with another embodiment.Therefore, the invention is intended to contain this modification within the scope as being included into claims and their equivalent and change.

Usually, this theme provides a kind of fluid cooled reformer for combustion gas turbine systems, and a kind of method of the thermal reforming product stream for cooling fuel reformer and produced by this reformer.In one embodiment, this theme discloses a kind of fluid cooled reformer, its utilize the flow in fuel of stream from the main fuel source of gas turbine at least partially to cool reactor assemblies and the pressurized container of fuel reformer.Such as, can on reactor assemblies, around and/or near guiding derive from the part of the flow in fuel in main fuel source, prevent by the overheated damage to fuel reformer caused with cooling reactor assembly.In addition, also flow in fuel can be used for cooling the thermal reforming product stream produced by reactor assemblies.Such as, with thermal reforming product stream, flow in fuel can be mixed that the bulk temperature of reformate is reduced to acceptable level, make the pipeline material downstream transport fuel/reformate mixture that can utilize low cost low temperature.Therefore, cost-effective online (in-line) fuel reforming process can be provided in gas turbine, to produce the hydrogen-rich fuel stream that itself can provide many operability benefits.Such as, the hydrogen level improved in flow in fuel can provide the flame stability of improvement in low NOx operation period, and provides lower discharge and the regulating ratio of raising.In addition, reforming process can cause the fuel temperature improved, and this can improve combustion efficiency and cause the change of Wo Bu (Wobbe) value.In addition, online fuel reformer can allow to control fuel reaction, and this can cause larger fuel flexibility.

Be readily appreciated that, although the fluid cooled reformer of this theme is described as substantially at this, flow in fuel be used for cooling object, the reactor assemblies of available any suitable fluid stream cooled reformer and thermal reforming product stream.Such as, in one embodiment, by entrance, steam is directed in reformer, thinks that reactor assemblies provides cooling.In addition, also steam can be mixed with the thermal reforming product stream leaving reactor assemblies, think that reformate stream provides cooling.In an alternative embodiment, can the diluent flow of such as nitrogen dilution agent stream be directed in the reformer of this theme, with cooling reactor assembly and thermal reforming product stream.In addition, one of ordinary skill in the art would recognize that, in the scope of this theme, other fluid various can be used for cooling reactor assembly and thermal reforming product stream.

With reference to accompanying drawing, Fig. 1 illustrates the schematic diagram of gas turbine 10.Gas turbine 10 can comprise compressor segmentation 12, the multiple burner forming combustor section 14 and turbine section 16.Compressor segmentation 12 connects by axle 18 with turbine section 16.Axle 18 can be single axle or be connected to together to form many axle sections of axle 18.During operation, pressurized air is supplied to combustor section 14 by compressor segmentation 12, and main fuel flow is supplied to combustor section 14 by main fuel source 20.Air and fuel is mixed combining combustion in each burner, and the combustion gas of heat flow to turbine section 16 from combustor section 14, in turbine section 16, extract energy with work done from combustion gas.In addition, according to the embodiment of this theme, fluid cooled reformer 22 can be arranged on the upstream of upstream, such as the fueling manifold (not shown) of combustor section 14, with a part for main fuel flow of reforming, thus produces hydrogen-rich reformate stream.Then, this hydrogen-rich reformate stream can be mixed with the remainder of main fuel flow and be delivered to combustor section 14 to burn.In addition, as below with reference to multiple embodiments of this theme with describing in more detail, the part of not reforming of main fuel flow, is described as bulk fuel stream usually at this, can be used for cooling fuel reformer 22 before non-fuel reforming mixes with reformate stream.

According to the aspect of this theme, Fig. 2 and 3 diagram is used for an embodiment of the fluid cooled reformer 22 of combustion gas turbine systems.Usually, fluid cooled reformer 22 comprises pressurized container 24 and the reactor assemblies 26 be arranged in pressurized container 24.Reactor assemblies 26 can comprise reactor 46 and reactor lining 48 usually.In addition, reactor assemblies 26 can be configured to the mixture receiving oxygen-containing gas and fuel, and this mixture of reforming is to produce thermal reforming product stream.Mixing segmentation 28 can be arranged on the upstream of reactor 46, and can be configured to oxygen-containing gas and fuel mix to form oxygen/fuel mixture.In addition, fluid cooled reformer 22 can comprise the entrance being configured to the such as bulk fuel entrance 30 be directed to by bulk fuel stream in pressurized container 24.Can on reactor assemblies 26, around and/or near guiding bulk fuel stream so that cooling reactor assembly 26.In addition, reformate cooling segmentation 32 can be arranged on the downstream of reactor 46, and can be configured to utilize the previous fluid stream for cooling reactor assembly 26 to cool the thermal reforming product stream of discharging from reactor assemblies 26.

The peripheral surface 38 that the pressurized container 24 of fluid cooled reformer 22 usually can comprise front end 34, rear end 36 and be arranged between front end 34 and rear end 36.The front end 34 of pressurized container 24 can limit one or more opening or path usually, to allow oxygen flow, flow in fuel or both mixture feed pressure containers 24.Such as, as shown in Figures 2 and 3, front end 34 can limit oxygen/fuel passage 42, and it is configured to the premix organ pipe 56 receiving mixing segmentation 28, makes oxygen/fuel mixture to be directed in pressurized container 24.In addition, the rear end 36 of pressurized container 24 can limit at least one outlet 44, for discharging the thermal reforming product stream leaving reactor assemblies 26 and the bulk fuel stream flowed around reactor assemblies 26 from pressurized container 24.In addition, the peripheral surface 38 of pressurized container 24 can be arranged between front end 34 and rear end 36, to limit side or the wall of pressurized container 24 substantially.Such as, as Fig. 2 and 3 describe, peripheral surface 38 can be mounted to front end 34 and rear end 36, and the jointing that Sealing (not shown) can be arranged between peripheral surface 38 and end 34,36 is to prevent from leaking from pressurized container 24.

Although it is cylindrical to will be appreciated that pressurized container 24 is depicted as in shape usually, pressurized container 24 can have any suitable shape usually.Such as, pressurized container 24 can be rectangle and comprise the peripheral surface 38 be arranged between front end 34 and rear end 36, to limit four sides or the wall of pressurized container 24.In addition, also will be appreciated that the exothermal nature due to the reaction occurred in reactor assemblies 26, so pressurized container 24 can be suitable for withstanding high temperatures.Therefore, one of ordinary skill in the art would recognize that, pressurized container 24 can be formed by the high temperature material can standing the temperature produced during reforming process.Such as, pressurized container 24 can be formed by refractory ceramics.

As mentioned above, the reactor assemblies 26 of this theme can be arranged in pressurized container 24 and also can be configured to receive and the oxygen/fuel mixture of the mixing segmentation 28 of reformate stream gravity flow body cooled reformer 22.In addition, reactor assemblies 26 can comprise reactor 46 and reactor lining 48.Reactor 46 can comprise any suitable fuel reactor known in the art usually, its be configured to change or reformate fuel stream to produce the thermal reforming product stream of rich hydrogen.In the exemplary embodiment, reactor 46 can comprise catalyzing part oxidation (CPOX) reactor, and it is for the oxygen/fuel mixture of reformate stream from mixing segmentation 28, mainly to produce hydrogen and carbon monoxide.Such as, CPOX reactor can be configured to utilize the sub-fraction of the oxygen partly fuel of the autonomous fuel source 20 of reformate stream in exothermic process, to produce the thermal reforming product stream of rich hydrogen.Then, thermal reforming product stream can be mixed with the bulk fuel do not reformed stream and downstream transport to the combustor section 14 of gas turbine 10 to improve flame stability, to reduce and discharge and improve regulating ratio.

The reactor lining 48 of reactor assemblies 26 usually can around reactor 46, to comprise the high-temperature product formed by the exothermic reaction occurred in reactor 46.In addition, reactor lining 48 can be configured to be directed to by the thermal reforming product stream produced by this reaction in the reformate cooling segmentation 32 of fluid cooled reformer 22.Therefore, as shown in Figure 3, reactor lining 48 can have the convergence segmentation 50 for being directed to by thermal reforming product stream in reformate cooling segmentation 32.Will be appreciated that and be similar to pressurized container 24, reactor lining 48 can be suitable for standing the high temperature produced by heat release reforming process usually, and therefore can be made up of any suitable high temperature material of such as refractory ceramics.

As mentioned above, the mixing segmentation 28 of fluid cooled reformer 22 can be arranged on the upstream of reactor 46.Usually, mix segmentation 28 can be configured to oxygen-containing gas and fuel mix to form oxygen/fuel mixture.Therefore, as shown in Figure 2, mix segmentation to flow with fuel source 54 with oxygen source 52 and be communicated with.In the exemplary embodiment, oxygen-containing gas comprises air.Therefore, the compressor segmentation 12 of gas turbine 10 can be used as the oxygen source 52 for mixing segmentation 28.Such as, the compressed-air actuated part leaving the compressor (not shown) of compressor segmentation 12 can be drawn away from main air flow and carry or be supplied to otherwise mixing segmentation 28.In such an embodiment, the additional compressor of such as pressurized machine (not shown) can be arranged on the upstream of mixing segmentation 28, with further pressurized stream from the air of compressor segmentation 12 and/or any pressure loss compensating appearance in pipe.In addition, in the exemplary embodiment, can be used as the fuel source 54 for mixing segmentation 28 for the main fuel source 20 of gas turbine.Therefore, in one embodiment, can the sub-fraction of the main fuel flow of the autonomous fuel source 20 of stream be guided in mixing segmentation 28, to mix with the air deriving from compressor segmentation 12, thus form oxygen/fuel mixture.Then, oxygen/fuel mixture can be directed in reactor assemblies 26 to activate reforming process.But one of ordinary skill in the art would recognize that, the fuel be directed in mixing segmentation 28 not necessarily derives from the main fuel source 20 of gas turbine 10.Such as, in an alternative embodiment, auxiliary fuel supply can be used as the fuel source 54 for mixing segmentation 28.In addition, will be appreciated that the oxygen-containing gas flowing into mixing segmentation 28 can originate from the source except compressor segmentation 12, such as auxiliary air source or external source of air.

Mixing segmentation 28 can have usually for promoting to be provided to the mixing oxygen-containing gas of segmentation 28 and any structure mixed of fuel.In one embodiment as shown in figure 2, mix segmentation 28 can comprise from the outward extending premix organ pipe 56 in the front end 34 of pressurized container 24.Premix organ pipe 56 can to flow with fuel source 54 with oxygen source 52 and be communicated with, and makes can to mix in premix organ pipe 56 oxygen-containing gas and fuel to form oxygen/fuel mixture.Therefore, will be appreciated that premix organ pipe 56 can have any suitable size, length or composite character usually, mixed fully before being directed in reactor assemblies 26 with fuel to allow oxygen-containing gas.In addition, as is illustrated in figs. 2 and 3, premix organ pipe 56 can be received in the oxygen/fuel passage 42 formed in the front end 34 of pressurized container 24.Therefore, oxygen/fuel mixture can directly from premix organ pipe 56 inflow reactor assembly 26.In an alternative embodiment, premix organ pipe 56 can be installed, weld or be fixed to otherwise the outer surface 40 of the front end 34 of pressurized container 24.In such an embodiment, the oxygen/fuel mixture leaving premix organ pipe 56 can at inflow reactor assembly 26 to flow through the oxygen/fuel passage 42 formed in front end 34 before reforming.

Still with reference to figure 2 and 3, fluid cooled reformer 22 also can comprise the entrance for being directed to by fluid stream in pressurized container.In one embodiment, reformer 22 can comprise the bulk fuel entrance 30 for being directed to by bulk fuel stream in pressurized container 24.As shown in the figure, bulk fuel entrance 30 can be limited in the peripheral surface 38 of pressurized container 24 to allow flow in fuel to enter pressurized container 24.But, will be appreciated that in an alternative embodiment, in the front end 34 that bulk fuel entrance 30 can be limited at pressurized container 24 or rear end 36.In addition, will be appreciated that bulk fuel stream can comprise part or all of main fuel flow of supplying from main fuel source 20.Such as, in the embodiment shown in figs. 2 and 3, bulk fuel stream can comprise main fuel flow and deducts and to be drawn away from main fuel flow and to be directed to the sub-fraction fuel of the mixing segmentation 28 of fluid cooled reformer 22.

The bulk fuel stream of feed pressure container 24 can provide several functions.Such as, bulk fuel stream can be in relatively low temperature, compares in particular with pressurized container 24 with the surface of reactor assemblies 26 and/or the temperature of lining.Therefore, bulk fuel stream can be used for cooling pressure container 24 and reactor assemblies 26.Such as, can on reactor lining 48, around and/or near guiding bulk fuel stream, with cooling reactor assembly 26.In particular, in one embodiment, bulk fuel stream can be guided around reactor assemblies 26, so that contact reactor lining 48 also allows to transmit heat by the conduction between lining 48 and flow in fuel.In addition, bulk fuel stream can be used for cooling the thermal reforming product stream leaving reactor assemblies 26.Such as, bulk fuel stream can be mixed with thermal reforming product stream, the temperature of reformate to be reduced to the temperature that downstream line can be stood.But, will be appreciated that and the fluid stream except bulk fuel stream can be directed in pressurized container 24 to provide cooling.Such as, in an alternative embodiment, the diluent flow of vapor stream or such as nitrogen dilution agent stream may be lead through entrance and enters in pressurized container 24 with cooling reactor assembly 26 and thermal reforming product stream.

In order to promote the cooling of reactor assemblies 26, fluid cooled reformer 22 also can comprise impingement sleeve 58.Especially as shown in Figure 3, impingement sleeve 58 can be arranged in pressurized container 24 and can be close to and at least in part around the reactor lining 48 of reactor assemblies 26.Therefore, impingement sleeve 58 can be configured to make bulk fuel stream to be distributed on reactor lining 48, and/or neighbouring with cooling reactor assembly 26 usually around.Therefore, multiple impact opening 60 can be formed flow through sleeve 58 and impact-response device lining 48 to allow bulk fuel stream in impingement sleeve 58.Will be appreciated that the position of the impact opening 60 that can change formation in impingement sleeve 58, size and quantity, to change or to strengthen the cooling effect of bulk fuel stream.In addition, guide of flow wall 64 can be arranged in pressurized container 24, to be defined for the runner of the bulk fuel stream of feed pressure container 24.Therefore, illustrated in the arrow in Fig. 3, the bulk fuel stream being entered pressurized container 24 by bulk fuel entrance 30 can be flowed into and flow around guide of flow wall 64, then flows on impingement sleeve 58 and flows through impingement sleeve 58 to allow bulk fuel stream impact-response device lining 48.In addition, one of ordinary skill in the art would recognize that, the outer surface of reactor lining 48 also can be provided with any suitable heat compensator conducting property, to strengthen the heat transfer from reactor assemblies 26 to bulk fuel stream.Such as, in one embodiment, radiating fin (not shown) can arrange along reactor lining 48 cooling performance improving bulk fuel stream.

In addition, the sub-fraction of the bulk fuel stream of pressurized container 24 can be directed to flow past between reactor assemblies 26 and the front end 34 of pressurized container 24.Such as, as shown in Figure 3, reactor assemblies 26 can be mounted to the front end 34 of pressurized container 24, make reactor assemblies 26 and front end 34 spaced apart.Therefore, cavity 66 can be limited between reactor assemblies 26 and front end 34.Therefore, as illustrated in arrow, the sub-fraction of bulk fuel stream can be directed to any adjacent portion with the front end 34 of cooling pressure container 24 and reactor assemblies 26 in cavity 66.

The fluid cooled reformer 22 of this theme also comprises the reformate cooling segmentation 32 in the downstream being arranged on reactor 46.Reformate cooling segmentation 32 can be configured to utilize usually on reactor assemblies 26, around and/or near the bulk fuel stream of flowing cool the thermal reforming product stream leaving reactor assemblies 26.Such as, reformate cooling segmentation can be configured to bulk fuel stream to mix with thermal reforming product stream, thermal reforming product stream to be cooled to the temperature that all downstream line can be stood.

In one embodiment as shown in figure 2, reformate cooling segmentation 32 can comprise cooling tube 68 and cooling cover 70 usually.Cooling cover 70 roughly can be arranged in cooling tube 68 and usually can be configured to receive the thermal reforming product stream of discharging from reactor 46.In addition, as is illustrated in figs. 2 and 3, cooling cover 70 can the extension of forming reactions device lining 48.Therefore, the thermal reforming product stream leaving reactor 46 can flow through the convergence segmentation 50 of reactor lining 48 and flows into cooling cover 70.But, in an alternative embodiment, will be appreciated that cooling cover 70 can be used as independent component and is fixed to reactor lining 48.

Cooling cover 70 also can be used for protection impingement sleeve 58 and cooling tube 68 affects from high temperature reformation product stream.Therefore, cooling cover 70 can comprise thermal reforming product stream, until fully cool reformate and obtain safe operating temperature.Such as, as shown in Figure 2, the whole length that cooling cover 70 can roughly extend throughout cooling tube 68 affects from high temperature reformation product to protect cooling tube 68.In addition, multiple Cooling Holes 71 can be formed with in cooling cover 70, inject thermal reforming product stream, to mix and to reduce the temperature of reformate with reformate to allow a part for the bulk fuel stream flowed around cooling cover 70.One of ordinary skill in the art would recognize that, the size of Cooling Holes 71 formed in cooling cover 70, quantity and position usually can cool the structure of segmentation 32 and required cooling performance according to reformate and change.

With reference to figure 2 and 3, cooling tube 68 can be received within the outlet 44 of the rear end 36 limiting pressurized container 24 usually, makes to discharge thermal reforming product stream and bulk fuel stream from pressurized container 24.In addition, cooling tube 68 may extend into the downstream 62 of also joint impact sleeve 58 in pressurized container 24.Therefore, the part not injected thermal reforming product stream by Cooling Holes 71 of bulk fuel stream can be guided between cooling tube 68 and cooling cover 70, to cool cooling cover 70 and further heat of cooling reformate stream.Then, this part of bulk fuel stream can be mixed with the bulk fuel/reformate mixture flowing through cooling cover 70, to reduce the temperature of mixture further.Then, can by the reformate fuel mixture downstream transport of this cooling to the combustor section 14 of gas turbine 10.

Will be appreciated that the length of cooling tube 68 and/or other size usually can cool the structure of segmentation 32 and required cooling performance according to reformate and change.In addition, will be appreciated that cooling tube 68 can with impingement sleeve 58 slip joint, with adapt to the impingement sleeve 58 caused by the high temperature related in reforming process heat growth.Therefore, as shown in Figure 3, cooling tube 68 can comprise notch end 72, slides relative to cooling tube 68 to allow the downstream 62 of impingement sleeve 58.

In the operation period of the fluid cooled reformer 22 of the embodiment illustrated in Fig. 2 and 3, the sub-fraction of the in the future main fuel flow of autonomous fuel source 20 the mixing segmentation 28 of fluid cooled reformer 22 can be guided into, to mix with oxygen-containing gas.The remainder of the formation bulk fuel stream of the fuel from main fuel flow can be directed in the bulk fuel entrance 30 limited in pressurized container 24.Stream can be received in reactor assemblies 26 from the oxygen/fuel mixture of mixing segmentation 28, and in this reactor assemblies 26, the exothermic reaction of mixture experience is to produce the thermal reforming product stream of rich hydrogen.In order to provide cooling to reactor assemblies 26, can on reactor lining 48, around and/or near guide the bulk fuel stream of inflow bulk fuel entrance 30.After cooling reactor assembly 26, bulk fuel stream can be directed in reformate cooling segmentation 32, in this reformate cooling segmentation 32, bulk fuel stream can be used for heat of cooling reformate stream.In particular, a part for bulk fuel stream can be injected thermal reforming product stream and mix with this thermal reforming product stream.The cooling cover 70 that the remainder of bulk fuel stream can cool segmentation 32 around reformate flows, to cool cooling cover 70 and to provide further cooling for reformate stream.Then, stream can be guided to the one or more burners in the combustor section 14 of gas turbine 10 to downstream from the hydrogen-rich fuel stream of the cooling of fluid cooled reformer 22.

Will be appreciated that additive can be added into the bulk fuel stream or hydrogen-rich fuel stream leaving fluid cooled reformer 22.Such as, the thinner of steam or such as nitrogen dilution agent can be added to bulk fuel stream before flow in fuel being directed in pressurized container 24.Such as can comprise this additive to dilute bulk fuel stream, thus the burning of the fuel in container 24 that eases off the pressure.In addition, steam or thinner can be added into hydrogen-rich fuel stream to provide further cooling for flow in fuel.

In addition, in one embodiment, the fuel drawing away to experience reforming process from main fuel flow can be preheated before being directed to mixing segmentation 28.Such as, the pipe (not shown) that the peripheral surface 38 by adjacent pressure vessels 24 is arranged draws away fuel, makes heat be passed to pipe, with pre-heating fuel from pressurized container 24.

With reference now to Fig. 4, illustrate the alternate embodiment of the fluid cooled reformer 22 of the another aspect according to this theme.Be similar to the embodiment illustrated in Fig. 2 and 3, the reactor assemblies 26 that fluid cooled reformer 22 comprises pressurized container 24 and is arranged in pressurized container 24.Reactor assemblies 26 can be configured to receive oxygen/fuel mixture this mixture of reforming to produce thermal reforming product stream.Mixing segmentation 28 can be arranged on the upstream of the reactor 46 of reactor assemblies 26 and can be configured to oxygen-containing gas and fuel mix to form oxygen/fuel mixture.In addition, fluid cooled reformer 22 can comprise the entrance being configured to the such as bulk fuel entrance 30 be directed to by bulk fuel stream in pressurized container 24.Can on reactor assemblies 26, around and/or near guiding bulk fuel stream so that cooling reactor assembly 26.In addition, reformate cooling segmentation 32 can be arranged on the downstream of reactor 46, and can be configured to utilize the previous bulk fuel stream for cooling reactor assembly 26 to cool the thermal reforming product stream of discharging from reactor assemblies 26.

As mentioned above, pressurized container 24 peripheral surface 38 that can comprise front end 34, rear end 36 and be arranged between front end and rear end.In addition, as shown in Figure 4, the front end 34 of pressurized container 24 can be defined for the oxygen path 74 be directed to by oxygen-containing gas in pressurized container 24.In particular, oxygen path 74 can flow with the oxygen source 52 (Fig. 2) of the compressor segmentation 12 of such as gas turbine 10 and be communicated with, to allow the oxygen-containing gas of such as air to be directed in pressurized container 24.In addition, the front end 34 of pressurized container 24 also can comprise the projection 76 extended internally.As shown in Figure 4, impingement sleeve 58 can extend from the outer surface 78 of projection 76.Such as, impingement sleeve 58 can be fixed to projection 76 or form with projection 76.In addition, the reactor lining 48 of reactor assemblies 26 can be fixed to the end of projection 76 or form with this end.

The projection 76 extended internally of the front end 34 of pressurized container 24 can limit the mixing segmentation 28 of fluid cooled reformer 22 usually.In particular, multiple fuel inlet 80 can be formed with in projection 76.The part that fuel inlet 80 can be configured to the bulk fuel stream by flowing through pressurized container 24 injects the oxygen-containing gas stream supplied by oxygen path 74.Such as, in one embodiment, while the sub-fraction of bulk fuel stream is guided through fuel inlet 80, the major part of bulk fuel stream is by impingement sleeve 58 and impact on reactor lining 48.Then, the fuel flowing through inlet 80 can be injected and mixes to form oxygen/fuel mixture with oxygen-containing gas.Then, oxygen/fuel mixture can guide from mixing segmentation 28 and enter reactor assemblies 26 to reform.Be readily appreciated that, the size of the inlet 80 formed in projection 76 and quantity can change according to from part needed for the fuel of the bulk fuel reformed by reactor 46 stream.

In addition, in the embodiment illustrated in Fig. 4, the reformate cooling segmentation 32 of fluid cooled reformer 22 can be limited by the rear end 36 of pressurized container 24 usually.Such as, as shown in the figure, the rear end 36 of pressurized container 24 can comprise the outward extending elongated outlet 82 from rear end 36.Elongated outlet 82 can be configured to receive the thermal reforming product stream leaving reactor assemblies 26 usually, and by this thermal reforming product stream with on reactor lining 48, around and/or near the part of not reforming of bulk fuel stream of flowing mix.Therefore, the part of not reforming of thermal reforming product stream and bulk fuel stream can converge at the downstream 49,62 of reactor lining 48 and impingement sleeve 58 respectively, and flows into elongated outlet 82, and in this elongated outlet 82, thermal reforming product stream is cooled by bulk fuel stream.Be readily appreciated that, thermal reforming product stream can be cooled to the combined amount needed for temperature that downstream line can stand according to the temperature of thermal reforming product stream and being enough to and change by the specific length of elongated outlet 82.

In the operation period of the fluid cooled reformer 22 of the embodiment illustrated in Fig. 4, by the oxygen path 74 limited by the front end 34 of pressurized container 24, oxygen-containing gas is fed in pressurized container 24.In addition, bulk fuel stream can be directed in the bulk fuel entrance 30 of pressurized container 24.When bulk fuel stream feed pressure container 24, a part for bulk fuel stream can be directed in mixing segmentation 28.In particular, a part for bulk fuel stream can flow through the fuel inlet 80 limited in the front end 34 of pressurized container 24, and can inject oxygen path 74 to mix forming oxygen/fuel mixture with oxygen-containing gas.Can be directed in reactor assemblies 26 from the oxygen/fuel mixture of mixing segmentation 28 by stream, in this reactor assemblies 26, the exothermic reaction of mixture experience is to produce the thermal reforming product stream of rich hydrogen.In order to provide cooling to reactor assemblies 26, can on reactor lining 48, around and/or near the remainder of guiding bulk fuel stream.Then, can be directed in reformate cooling segmentation 32 by the part of not reforming of bulk fuel stream, in this reformate cooling segmentation 32, bulk fuel stream can be used for the thermal reforming product stream of cool stream autoreactor 46.In particular, thermal reforming product stream can be mixed the temperature to reduce thermal reforming product stream with the part of not reforming of bulk fuel stream.Then, can by the hydrogen-rich fuel stream downstream transport of this cooling to the one or more burners in the combustor section 14 of gas turbine 10.

According to the another aspect of this theme, Fig. 5 illustrates another embodiment of fluid cooled reformer 22.Be similar to the embodiment illustrated in Fig. 2-4, the reactor assemblies 26 that fluid cooled reformer 22 comprises pressurized container 24 and is arranged in pressurized container 24.Reactor assemblies 26 can be configured to receive oxygen/fuel mixture this mixture of reforming to produce thermal reforming product stream.Mixing segmentation 28 can be arranged on the upstream of the reactor 46 of reactor assemblies 26 and can be configured to oxygen-containing gas and fuel mix to form oxygen/fuel mixture.In addition, fluid cooled reformer 22 can comprise the entrance being configured to the such as bulk fuel entrance 30 be directed to by bulk fuel stream in pressurized container 24.Can on reactor assemblies 26, around and/or near guiding bulk fuel stream so that cooling reactor assembly 26.In addition, reformate cooling segmentation 32 can be arranged on the downstream of reactor 46, and can be configured to utilize the bulk fuel stream for cooling reactor assembly 26 to cool the thermal reforming product stream of discharging from reactor assemblies 26.

As mentioned above, pressurized container 24 peripheral surface 38 that can comprise front end 34, rear end 36 and be arranged between front end 34 and rear end 36.In addition, as shown in Figure 5, the front end 34 of pressurized container 24 can be defined for the fuel passage 84 oxygen-containing gas being directed to the oxygen path 74 in pressurized container 24 and being used for being directed to by fuel in pressurized container 24.Oxygen path 74 can flow with the oxygen source 52 (Fig. 2) of the compressor segmentation 12 of such as gas turbine 10 and be communicated with, to allow the oxygen-containing gas of such as air to be directed in pressurized container 24.In addition, fuel passage 84 can flow with the fuel source 54 (Fig. 2) of the main fuel flow such as flowing autonomous fuel source 20 and be communicated with, to allow a part for the fuel from main fuel flow to be directed in the front end 34 of pressurized container 24.

The oxygen path 74 limited in the front end 34 of pressurized container 24 and fuel passage 84 can be configured to oxygen-containing gas and fuel to be directed to respectively in the mixing segmentation 28 of fluid cooled reformer 22.As shown in Figure 5, mixing segmentation 28 can be limited by mixing chamber 86 usually, and this mixing chamber 86 is formed by the reactor lining 48 of reactor assemblies 26 between the internal surface 88 and reactor 46 of the front end 34 of pressurized container 24.Usually, mixing chamber 86 can be configured to flow through the oxygen-containing gas of front end 34 and fuel mix to form oxygen/fuel mixture.In order to promote mixing of oxygen-containing gas and fuel, mixing pan 90 can be provided with in mixing chamber 86.Such as, multiple mix aperture 92 can be formed with in mixing pan 90, to strengthen mixing of oxygen-containing gas and fuel.

In addition, in the embodiment that Fig. 5 describes, the reformate cooling segmentation 32 of fluid cooled reformer 22 can be limited by the rear end 36 of pressurized container 24 usually.Such as, be similar to the embodiment illustrated in Fig. 4, the rear end 36 of pressurized container 24 can comprise the outward extending elongated outlet 82 from rear end 36.Elongated outlet 82 can be configured to receive the thermal reforming product stream leaving reactor assemblies 26 usually, and by this thermal reforming product stream with on reactor lining 48, around and/or near the bulk fuel stream of flowing mix.But except elongated outlet 82, reformate cooling segmentation 32 also can comprise at least one hybrid element, it is configured to strengthen mixing of thermal reforming product stream and bulk fuel stream, to provide further cooling for thermal reforming product stream.Such as, as shown in Figure 5, hybrid element can comprise and disperses valvular structure 94 from reactor lining is outward extending.Valvular structure 94 can be configured to, when flowing and converging and flow into elongated outlet 82, turbulent flow is introduced thermal reforming product stream and bulk fuel stream, to promote mixing.Will be appreciated that valvular structure 94 can forming reactions device lining 48 a part or can be used as independent component such as by being welded and fixed to reactor lining 48.In addition, one of ordinary skill in the art would recognize that, other suitable hybrid element can be utilized in the scope of this theme to strengthen the cooling of thermal reforming product stream further.Such as, radiating fin (not shown) can be formed on reactor lining 48 with turbulent flow is introduced bulk fuel stream, thermal reforming product stream or both.

In the operation period of the fluid cooled reformer 22 of the embodiment illustrated in Fig. 5, oxygen-containing gas and the part from the main fuel flow in main fuel source 20 may be lead through the front end 34 of pressurized container 24 and enter in the mixing chamber 86 of mixing segmentation 28.In mixing chamber 86, fuel can be mixed to form oxygen/fuel mixture with oxygen-containing gas.The remainder of the fuel from main fuel flow forming bulk fuel stream can be directed in the bulk fuel entrance 30 limited in pressurized container 24.Can be directed in reactor assemblies 26 from the oxygen/fuel mixture of mixing segmentation 28 by stream, in this reactor assemblies 26, the exothermic reaction of mixture experience is to produce the thermal reforming product stream of rich hydrogen.In order to give reactor assemblies 26 cooling is provided, can on reactor lining 48, around and/or near guiding bulk fuel stream.Then, bulk fuel stream can be directed in reformate cooling segmentation 32, in this reformate cooling segmentation 32, bulk fuel stream can be used for heat of cooling reformate stream.In particular, thermal reforming product stream can be mixed the temperature to reduce thermal reforming product stream with bulk fuel stream.The hybrid element of such as valvular structure 94 can be comprised, to strengthen the cooling of thermal reforming product stream in reformate cooling segmentation 32.Then, can by the hydrogen-rich fuel stream downstream transport of this cooling to the one or more burners in the combustor section 14 of gas turbine 10.

Will be appreciated that in the alternate embodiment of this theme, the fluid stream for the such as bulk fuel stream of cooling reactor assembly 26 can draw away from pressurized container 24 when not mixing with thermal reforming product stream.In such an embodiment, thermal reforming product stream can be cooled by another source of such as downstream heat exchanger before mixing with bulk fuel stream.

Also will be appreciated that this theme is also provided for the method for thermal reforming product stream cooling fuel reformer 22 and produced by this fuel reformer 22.The method can comprise usually: the reactor assemblies 26 around fuel reformer 22 guides the fluid stream of such as bulk fuel stream, vapor stream or diluent flow with cooling reactor assembly 26, and wherein reactor assemblies 26 is configured to produce thermal reforming product stream; And thermal reforming product stream is mixed with fluid stream with heat of cooling reformate stream.

This written explanation uses example openly to comprise the present invention of optimal mode, and makes those skilled in the art to put into practice the present invention, comprises the method manufacturing and use any combination of any device or system and execution.The patentable scope of the present invention is defined by the claims, and can comprise other example that those skilled in the art expect.If other example this comprises do not have different structural elements from the literal language of claim, if or they comprise and the equivalent structural elements of the literal language of claim without essential difference, then this other example intention is within the scope of the claims.

Claims

1. the fluid cooled reformer (22) for combustion gas turbine systems, described fluid cooled reformer (22) comprising:

Pressurized container (24);

Reactor assemblies (26), it is arranged in described pressurized container (24), described reactor assemblies (26) comprises reactor (46) and the reactor lining (48) around described reactor (46), described reactor assemblies (26) be configured to receive and oxygen/fuel mixture of reforming to produce thermal reforming product stream;

Entrance (30), it is configured to be directed to by fluid stream in described pressurized container (24), described fluid stream at least partially around the flowing of described reactor assemblies for the described reactor assemblies of cooling (26); And

Reformate cooling segmentation (32), it is arranged on described reactor (46) downstream, and described reformate cooling segmentation (32) is configured to utilize the described of described fluid stream to cool the described thermal reforming product stream produced by described reactor assemblies (26) at least partially;

Wherein mix with the thermal reforming product stream in described reactor (46) downstream at least partially for cooling the described of the described fluid stream of described reactor assemblies (26);

Described pressurized container (24) comprises front end (34), rear end (36) and the peripheral surface (38) be arranged between front end and rear end, the front end (34) of described pressurized container is defined for and oxygen-containing gas is directed to the oxygen path (74) in pressurized container and comprises the projection (76) extended internally, multiple fuel inlet (80) is formed in this projection (76), the part that described fuel inlet (80) is configured to the fluid stream by flowing through described pressurized container (24) injects the oxygen-containing gas stream supplied by described oxygen path (74).

2. fluid cooled reformer (22) according to claim 1, is characterized in that, described fluid stream comprises bulk fuel stream, vapor stream and diluent flow.

3. the fluid cooled reformer (22) according to arbitrary aforementioned claim, it is characterized in that, comprise the mixing segmentation (28) being arranged on described reactor (46) upstream, described mixing segmentation (28) is configured to oxygen-containing gas and fuel mix to form described oxygen/fuel mixture.

4. the fluid cooled reformer (22) according to described any one of claim 1 to 2, it is characterized in that, comprise at least in part around the impingement sleeve (58) of described reactor lining (48), described impingement sleeve (58) is configured to distribute at least partially described of described fluid stream around described reactor lining (48).

5. the fluid cooled reformer (22) according to described any one of claim 1 to 2, is characterized in that, described reactor (46) is catalytic partial oxidation reactor.

6. the fluid cooled reformer (22) according to described any one of claim 1 to 2, it is characterized in that, described reactor assemblies (26) is spaced apart with the front end (34) of described pressurized container (24), to limit cavity (66) between described reactor assemblies (26) and described front end (34), the described sub-fraction at least partially of described fluid stream is introduced into described cavity (66).

7. the fluid cooled reformer (22) according to described any one of claim 1 to 2, it is characterized in that, described reformate cooling segmentation (32) comprises and being configured to described thermal reforming product stream and at least one hybrid element (94) mixed at least partially described in described fluid stream.

8. the method for thermal reforming product stream cooling fuel reformer (22) and produced by this fuel reformer (22), described method comprises:

Reactor assemblies (26) around fuel reformer (22) guides fluid stream to cool described reactor assemblies (26), wherein, described reactor assemblies (26) to be arranged in pressurized container (24) and to be configured to produce thermal reforming product stream; And

Described thermal reforming product stream is mixed to cool described thermal reforming product stream with described fluid stream;

Wherein for cooling mixing with the thermal reforming product stream in reactor (46) downstream of reactor assemblies (26) at least partially of the described fluid stream of described reactor assemblies (26);

9. method according to claim 8, is characterized in that, described fluid stream comprises non-reformate fuel stream.

10. method according to claim 9, is characterized in that, comprises and adds steam or the thinner mixture to described thermal reforming product stream and described non-reformate fuel stream, to cool described thermal reforming product stream further.